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MTX Audio is an American consumer audio company headquartered in Phoenix, Arizona [1] that manufactures sound equipment for applications including car audio, home audio, marine audio and live sound products. They are best known for their car audio products and they specialize in subwoofers and subwoofer amplifiers. [2]
The heaviest production subwoofer intended for use in automobiles is the MTX Jackhammer by MTX Audio, which features a 22-inch (560 mm) diameter cone. The Jackhammer has been known to take upwards of 6000 watts sent to a dual voice coil moving within a 900-ounce (26 kg) strontium ferrite magnet.
Mullard Circuits for Audio Amplifiers is a famous book by the Technical Services Department of Mullard Ltd, a British valve manufacturing company. First published in 1959 and then reprinted several times it contained a number of designs by Mullard engineers for high quality audio amplifiers, which were to be used by amateur constructors as well as by manufacturers as the basis for many ...
Yorkville Sound is a Canadian manufacturer of audio amplifiers (including the Traynor amplifier line), loudspeakers and related professional sound reinforcement equipment. [1] [2] Based in Pickering, Ontario, Canada, the firm has a global presence as an importer and exporter of audio electronic products. [3] [4]
Representative schematic of a paralleled amplifier configuration. A paralleled amplifier configuration uses multiple amplifiers in parallel, i.e., two or more amplifiers operating in-phase into a common load. In this mode the available output current is doubled but the output voltage remains the same. The output impedance of the pair is now halved.
The term All American Five (abbreviated AA5) is a colloquial name for mass-produced, superheterodyne radio receivers that used five vacuum tubes in their design. These radio sets were designed to receive amplitude modulation (AM) broadcasts in the medium wave band, and were manufactured in the United States from the mid-1930s until the early 1960s.
Most of their models were either outright or close copies of then current, successful amplifiers and other audio equipment. Early Earth Sound Research amplifiers used all tube circuitry and were assembled inside the Benjamin Electric Sound plant in Farmingdale. The company also hired subcontractors for component assembly. [1]
A class-B push–pull amplifier is more efficient than a class-A power amplifier because each output device amplifies only half the output waveform and is cut off during the opposite half. It can be shown that the theoretical full power efficiency (AC power in load compared to DC power consumed) of a push–pull stage is approximately 78.5%.